Free illustration materials

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  Distribution board for construction
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  Charcoal
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  Water solar
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  Biofuel
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  Steel tower
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  Electricity meter
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  Charger
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  Solar panel material
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  Local production for local consumption of electricity
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  Gas station
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  Nikola-Tesla caricature
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  Waste oil
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  Tanker accident
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  Hybrid car
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  Wind Wizard
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  Lighting (straight tube fluorescent lamp)
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  Gas main plug
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  Radioactive waste
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  A person who closes the gas main valve
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  Storage battery
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  Small hydropower
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  Hydrogen vehicle that discharges water
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  Electricity bill
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  (power liberalization) characters
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  Lighting (incandescent light bulb)
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  Outlet (unplugged plug-plugged plug) (power saving)
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  Sun and solar panel
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  Electric car
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  Rare metal
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  Kerosene is being transferred to the stove tank

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  Power outage (before and after)
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  Alessandro-Volta caricature
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  Thermal power plant
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  Person with a heavy plastic tank
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  Male adjusting the temperature of the air conditioner (power saving)
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  Power saving (unplug)
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  Edison caricature
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  Oil in drums
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  Oil King
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  Person who has the switch off (power saving)
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  Firewood
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  Oil plant